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No Heat Sapphire Loose Gem

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Star Sapphire Ring Gem 4.19 Carat No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Remarkable 4.19 carat unheated Ceylon Star Sapphire offered loose for a classy lady or gentleman
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire, Star Sapphire

Star Sapphire Gem 11.53 Carat No Heat Unset Loose Gemstone
By Tamir
Located in Beverly Hills, CA
Natural 11.53 carat unheated violetish blue "Ceylon" Star Sapphire gem, offered loose to a gemstone
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire, Star Sapphire

Star Sapphire Ring Gem 5.17 Carat No Heat Unset Loose Gemstone
By Tamir
Located in Beverly Hills, CA
Natural 5.17 carat unheated "Ceylon" intense blue Star Sapphire oval cabochon gem, offered loose to
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire, Star Sapphire

Star Sapphire Ring Gem 12.74 Carat No Heat Unset Loose Gemstone
By Tamir
Located in Beverly Hills, CA
Unheated 12.74 carat bluish grey Star Sapphire gem, offered loose to a classy lady or gentleman
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire, Star Sapphire

Unheated Padparadscha Sapphire Ring Gem 3.08 Carat No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Rare and exclusive 3.08 carat unheated Padparadscha Sapphire cushion gem, offered loose to a world
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Padparadscha Sapphire

Pink Star Sapphire Ring Gem 20.40 Carat No Heat Unset Loose Gemstone
By Tamir
Located in Beverly Hills, CA
Natural 20.40 carat unheated light Pink Star Sapphire oval cabochon gem, offered loose to a classy
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Pink Sapphire, Star Sapphire

Unheated Padparadscha Sapphire Ring Gem 3.02 Carat Ceylon No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Phenomenal 3.02 carat unheated Ceylon Padparadscha Sapphire gem, offered loose to a classy lady or
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Padparadscha Sapphire

Unheated Pink Sapphire Ring Gem 3.56 Carat Cushion No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Fine and exclusive 3.56 carat unheated Pink Sapphire cushion gem, offered loose to a world-class
Category

21st Century and Contemporary Malagasy Contemporary Loose Gemstones

Materials

Pink Sapphire

Unheated Orange Sapphire Ring Gem 8.10 Carat GIA No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Rare and exceptional 8.10 carat unheated orange Sapphire round gem, offered loose to an avid gem
Category

21st Century and Contemporary Malagasy Contemporary Loose Gemstones

Materials

Sapphire, Other

Unheated Pink Sapphire Ring Gem 3.19 Carat Oval Loose No Heat Gemstone
By Merkaba
Located in Beverly Hills, CA
Superb 3.19 carat unheated Pink Sapphire oval gem, offered loose to a world-class gemstone
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Pink Sapphire

Unheated Burma Sapphire Ring Gem 3.01 Carat Royal Blue No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Royal Blue 3.01 carat unheated Burma Sapphire round gem, offered loose to an avid gemstone
Category

21st Century and Contemporary Burmese Modern Loose Gemstones

Materials

Sapphire, Blue Sapphire

Unheated Pink Sapphire Ring Gem 3.06 Carat Cushion No Heat Ceylon Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Fine and exclusive 3.06 carat unheated "Ceylon" (Sri Lanka) Pink Sapphire cushion gem, offered
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Pink Sapphire

Certified 26.63 Carats Madagascar Blue Sapphire No-Heat Sugarloaf Natural Gem
Located in Jaipur, RJ
26.63 Carats Blue Sapphire Sugarloaf No-Heat For Jewelry Top Quality Natural Gem Gemstone: Blue
Category

2010s Malagasy Loose Gemstones

Materials

Sapphire, Blue Sapphire

GIA No Heat Natural Cabochon Burma Sapphire Weighing 8.35 Carat Loose Stone
By OGI Ltd
Located in New York, NY
Introducing an Exquisite 8.35 Carat GIA Certified Natural Cabochon Burma Sapphire - A Rare Gem of
Category

Vintage 1950s Burmese Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire

IGI Certified Pink Purple Sapphire 1.51ct Unheated Oval Cut Loose Oval Cut Gem
By Gems and Jewels UK
Located in Birmingham, GB
certified by IGI in Antwerp, one of their best and most well equipped gem labs. This sapphire has a
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire, Pink Sapphire

4.41 carats No-heat Burma Blue sapphire Ruby cabochon for jewelry natural gem
Located in Jaipur, RJ
4.41 carats No-heat Burma Blue sapphire & Ruby cabochon for jewelry natural gem Weight - 4.41
Category

2010s Unknown Loose Gemstones

Materials

Blue Sapphire, Ruby

2.18 carats No Heat Purplish Blue Sapphire Stone Cushion Cut Sri Lankan Gem
Located in Bangkok, TH
cushion Cut Faceted This exquisite 2.18 carat purplish blue sapphire is a striking cushion-cut gemstone
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Blue Sapphire

11.05 Cts Burmese Blue Sapphire No Heat Round 11mm cabochon for fine Jewelry Gem
Located in Jaipur, RJ
11.05 Carats Burmese Blue Sapphire No Heat Round cabochon for fine Jewelry Gem Gemstone: Blue
Category

2010s Burmese Loose Gemstones

Materials

Blue Sapphire

86.28 Carats big Rare Burmese Blue Sapphire No Heat Tumble for Fine Natural Gem
Located in Jaipur, RJ
Rare big Burmese Blue Sapphire Tumble for Fine jewelry Gemstone: Blue Sapphire No Heat Type
Category

2010s Burmese Loose Gemstones

Materials

Blue Sapphire

76.13 Carats Rare huge Burmese Blue Sapphire No Heat Tumble for Fine Natural Gem
Located in Jaipur, RJ
Rare Size huge Burmese Blue Sapphire Tumble for Fine jewelry Gemstone: Blue Sapphire No Heat Type
Category

2010s Burmese Loose Gemstones

Materials

Blue Sapphire

Lotus certified 1.05 carat color change sapphire No heat
Located in Hua Hin, TH
This gem displays a rare change-of-color effect between daylight and incandescent Cut: Antique
Category

2010s Loose Gemstones

Materials

Sapphire

Unheated Light Violet Sapphire Ring Gem 3.41 Carat Oval Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Exquisite 3.41-Carat No-Heat “Metallic” Light Violet Sapphire – A Rare Gem for Bespoke Jewelry By
Category

21st Century and Contemporary Malagasy Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire, Purple Sapphire

GIA Certified #5231058390 No Heat Ceylon Cabochon Sapphire Weighing 17.16 carat
By OGI Ltd
Located in New York, NY
exquisite GIA Certified #5231058390 No Heat Ceylon Cabochon Sapphire, a true gem of exceptional beauty and
Category

20th Century Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire

Unheated Light Green Sapphire Ring Gem 3.67 Carat Emerald Cut Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Exclusive 3.67 carat no-heat pastel light green Sapphire emerald cut gem, offered unmounted to a
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Green Sapphire

Lotus Cert. 2.07 Carat Red Sapphire from East Africa No Heat
Located in Hua Hin, TH
2.07 carat red sapphire from East Africa No Heat Dimensions: 8.14 x 6.06 x 4.50 mm Shape: Oval
Category

2010s African Loose Gemstones

Materials

Sapphire

1.05 Carat Color Change Sapphire Lotus Certified No Heat from Ceylon
Located in Hua Hin, TH
1.05 carat color change sapphire Lotus certified No Heat Dimensions: 6.00 x 5.55 x 4.28 mm Shape
Category

2010s Sri Lankan Loose Gemstones

Materials

Sapphire

GIA Certified #6234058393 No Heat Ceylon Natural Star Sapphire 18.66 carats
By OGI Ltd
Located in New York, NY
"GIA Certified 18.66 Carat No Heat Ceylon Natural Star Sapphire - Spectacular Gemstone" Elevate
Category

20th Century Sri Lankan Contemporary Loose Gemstones

Materials

Star Sapphire

Natural Unheated Royal Blue Sapphire 0.53ct Oval Cut Loose Gemstone VS
By Gems and Jewels UK
Located in Birmingham, GB
Natural Unheated Royal Blue Sapphire 0.53ct Oval Cut Loose Gemstone 5.6x4.2mm VS Natural Unheated
Category

21st Century and Contemporary Loose Gemstones

Materials

Blue Sapphire

GIA Certification Natural Star Sapphire Oval Cabochon 6.89 Carats No Heat
By OGI Ltd
Located in New York, NY
Product Description: Discover the allure of this exquisite natural star sapphire, a gem that
Category

Mid-20th Century Sri Lankan Contemporary Loose Gemstones

Materials

Star Sapphire

GIA Blue Star Sapphire No Heat Sri Lanka Certified Natural Vintage 10.69 Carats
Located in Sylvania, GA
Natural Gem, Sapphire Has No Treatment Whatsoever. Comes With GIA Paperwork. Certified No Heat, and
Category

20th Century Sri Lankan Loose Gemstones

Materials

Blue Sapphire, Star Sapphire, Platinum

GIA Certified No Heat Pear Shape Carving Natural Sapphire Weighing 4.70 Carats
By OGI Ltd
Located in New York, NY
GIA-certified No Heat Pear Shape Carving Natural Sapphire weighing 4.70 carats can be considered a
Category

Early 20th Century Burmese Contemporary Loose Gemstones

Materials

Sapphire

2.62 carats No Heat Parti Sapphire Stone Oval Cut Natural Madagascar s Gemstone
Located in Bangkok, TH
Shape oval Cut faceted This exquisite 2.62-carat natural parti sapphire is a captivating gemstone
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Sapphire

1.60 carats Bicolor Parti Sapphire Stone Emerald Cut Natural Madagascar s Gem
Located in Bangkok, TH
Weight 1.60 carats Dimensions 6.9x5.4x4.2 mm Treatment heat Clarity VVS Origin Madagascar Shape
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Sapphire

Stunning 1.77 Carat Cornflower Blue Sapphire
Located in Hua Hin, TH
An exquisite vivid Blue octagonal Sapphire from the 'Isle of Gems', Sri Lanka. ;We offer bespoke
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

17.16 Ct Sapphire Emerald Cut IGI Certified Ethiopian, Unheated
Located in Toronto, Ontario
This is a Fabulous 17.16ct IGI Certified Unheated Sapphire Description: One Loose Sapphire
Category

2010s Ethiopian Loose Gemstones

Materials

Sapphire

Unheated Orange Sapphire GIA Certified 3.07 Carat Natural No Heat Gem
By Merkaba
Located in Beverly Hills, CA
Natural, unheated, "Ceylon" orange Sapphire oval gem, weighing a total of 3.07 carats. This supreme
Category

21st Century and Contemporary Sri Lankan Contemporary Cocktail Rings

Materials

Sapphire, Yellow Sapphire, Other, 18k Gold, Rose Gold, White Gold, Yello...

Unheated Purple Sapphire Ring Gem 11.28 Carat Cushion Sugarloaf Cabochon Loose
By Merkaba
Located in Beverly Hills, CA
beholds it. No-Heat Rarity: A Collector’s Gem What sets this Sapphire apart is its no-heat treatment, a
Category

21st Century and Contemporary Sri Lankan Contemporary Cocktail Rings

Materials

Purple Sapphire, Sapphire

Unheated Sapphire GIA Certified 6.07 Carat Natural
By Merkaba
Located in Beverly Hills, CA
Natural, no heat Sapphire emerald cut, weighing a total of 6.07 carats, displaying a very unique
Category

21st Century and Contemporary Thai Contemporary Cocktail Rings

Materials

Blue Sapphire, Green Sapphire, Sapphire, 18k Gold, Rose Gold, White Gold...

Unheated Burma Sapphire AGL Certified 4.67 Carat Natural
By Merkaba
Located in Beverly Hills, CA
Natural, no heat, Burma Sapphire cushion cut gem, weighing a total of 4.67 carats. This collection
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Sapphire, Blue Sapphire, Other, 18k Gold, Rose Gold, White Gold, Yellow ...

Unheated Green Sapphire Emerald Cut 8.42 Carat GIA Certified Natural
By Merkaba
Located in Beverly Hills, CA
No heat G.I.A certified 8.42 carat Green Sapphire emerald cut. This superb, collection quality gem
Category

21st Century and Contemporary Malagasy Modern Cocktail Rings

Materials

Sapphire, Yellow Sapphire, Green Sapphire, Other, 18k Gold, Rose Gold, W...

Fine Quality 5.39 ct Blue Sapphire Diamond Ring in 18k White Gold
Located in Toronto, Ontario
H.S.T. Description:   One Loose Sapphire Report Number: GT13354502 Weight: 5.39 cts
Category

2010s Canadian Contemporary Cocktail Rings

Materials

Diamond, Blue Sapphire, White Gold

Unheated Sapphire Ring Gem 4.14 Carat Cornflower Blue No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Lively Cornflower Blue 4.14 carat unheated oval Sapphire gem, offered loose to a classy lady or
Category

21st Century and Contemporary Malagasy Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire

2.18ct Pear Greenish- Yellow Sapphire, No Heat
Located in เกาะสมุย, TH
sapphire. Weight= 2.18 carats treatment: no indication of heat treatment Gem lab certificate available
Category

21st Century and Contemporary Asian Loose Gemstones

Materials

Yellow Sapphire

Stunning 1.50 Carat Cornflower Blue Sapphire No Heat
Located in Hua Hin, TH
This fine Cornflower Blue sapphire hails from Madagascar, one of the most affluent sources of gems
Category

2010s Malagasy Loose Gemstones

Materials

Blue Sapphire

Vivid Blue Ceylon Sapphire 0.62ct Oval Cut Rare Sri Lanka Natural Gem
By Gems and Jewels UK
Located in Birmingham, GB
Vivid blue Ceylon sapphire loose gemstone. 0.62 Carat stone with very good clarity, clean stone
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire

Lotus Certified 3.56 Carat Purple Spinel from Sri Lanka
Located in Hua Hin, TH
Jewels", Sri Lanka has produced fine gems for over 200 years, including many of the world's finest rubies
Category

2010s Sri Lankan Loose Gemstones

Materials

Spinel

4.75 Carat Natural Loose Colorless Morganite Gemstone for Jewelry Making
Located in Peshawar, PK
morganite engagement ring suitable for everyday wear, although it is not as durable as harder gems like
Category

21st Century and Contemporary Brazilian Arts and Crafts Cocktail Rings

Materials

Morganite, Stainless Steel, Silver Plate, Silver

2.45 Carat Natural Loose Peach Morganite Gemstone Asscher Cut
Located in Peshawar, PK
morganite engagement ring suitable for everyday wear, although it is not as durable as harder gems like
Category

21st Century and Contemporary Brazilian Arts and Crafts Dome Rings

Materials

Morganite, 14k Gold, 15k Gold, 9k Gold, Gold-filled, Gold Plate, Palladi...

8 Carat GIA Certified Burma No Heat Blue Sapphire Cabochon
Located in Hong Kong, HK
8 Carat GIA Certified Burma No Heat Blue Sapphire Cabochon: A beautiful gem, it is a 8 carat
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Blue Sapphire

8.63 Carat GRS Certified Burma No Heat Vivid Blue Sapphire Cabochon
Located in Hong Kong, HK
8.63 Carat GRS Certified Burma No Heat Vivid Blue Sapphire Cabochon: A beautiful gem, it is a 8.63
Category

2010s Hong Kong Modern Loose Gemstones

Materials

Sapphire, Blue Sapphire

9.33 Carat GRS Certified Cushion-Cut Burma No Heat Blue Sapphire
Located in Hong Kong, HK
9.33 Carat GRS Certified Cushion-Cut Burma No Heat Blue Sapphire: A beautiful gem, it is a GRS
Category

2010s Hong Kong Modern Loose Gemstones

Materials

Blue Sapphire

3.75 Carat GIA Certified Burma No Heat Cushion Cut Vivid Blue Sapphire
Located in Hong Kong, HK
3.75 Carat GIA Certified Burma No Heat Cushion Cut Vivid Blue Sapphire: A beautiful gem, it is a
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Blue Sapphire

Certified 1.15 ct Padparadscha Sapphire No Heat Ceylon Origin Ring Stone
Located in Makola, LK
that the island had the best sapphires, topazes, amethysts, and other gems in the world. Ptolemy, the
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire, Pink Sapphire, Padparadscha Sapphire , Pink Diamond

Certified Natural No heat Blue Sapphire Ceylon Origin Gemstone 1.15 Ct
Located in Makola, LK
. Marco Polo wrote that the island had the best sapphires, topazes, amethysts, and other gems in the
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Blue Sapphire, Purple Sapphire

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No Heat Sapphire Loose Gem For Sale on 1stDibs

Surely you’ll find the exact no heat sapphire loose gem you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Each design created in this style — which was crafted with great care and often made from gold, platinum and white gold — can elevate any look. Our collection of these items for sale includes 7 vintage editions and 88 modern creations to choose from as well. Finding the perfect no heat sapphire loose gem may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. Creating a no heat sapphire loose gem has been a part of the legacy of many jewelers, but those produced by Merkaba, Gems and Jewels UK and OGI Ltd are consistently popular. See these pages for an oval cut iteration of this accessory, while there are also cushion cut cut and brilliant cut cut versions available here, too. If you’re browsing our inventory for a no heat sapphire loose gem, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a No Heat Sapphire Loose Gem?

On average, a no heat sapphire loose gem at 1stDibs sells for $4,350, while they’re typically $26 on the low end and $215,000 for the highest priced versions of this item.

The Legacy of Sapphire in Jewelry Design

On 1stDibs, shop the bright blue gems that star in sapphire rings, sapphire necklaces and other vintage and antique sapphire jewelry

Sapphires — the stone of choice for Napoleon, Princess Diana and Elizabeth Taylor — have been a favorite of aristocrats and the well-to-do since the time of the Ancient Greeks.

Picture a sapphire. If the stone you conjure is a deep cornflower blue, you’re seeing only part of the picture. Although blue Kashmirs are considered the most valuable, sapphires come in every color except red. No matter the hue, this very special gem is rich in history and beloved by royals (FYI, Princess Diana and Kate Middleton share an 11-carat sapphire engagement ring), so September babies are in very noble company.

America’s version of royalty — old money and celebrities — have also shown a predilection for the blue stones. In 1940, John D. Rockefeller Jr. had Cartier mount a 62-carat sapphire he had bought from an Indian maharajah in a brooch for his first wife, Abby Aldrich Rockefeller; in 2001, the piece sold for a then-record of $3,031,000 at Christie’s New York.

The grand dame of jewelry, Elizabeth Taylor had a passion for the gems that her lovers were happy to indulge. Second husband Michael Wilding gave her an engagement ring set with a cabochon sapphire, while Richard Burton famously presented her with a BVLGARI sautoir set with diamonds and sapphires, including at its center a cabochon Burmese weighing 52.72 carats. One of the star lots in the sale of Taylor’s jewels at the Christie’s New York in 2011, it sold for $5,906,500.

You don’t have to have blue blood or a bulging bank account, however, to get an eyeful of this much-coveted gem. A number of outstanding examples reside in public collections.

The Smithsonian Museum of Natural History owns the 423-carat Logan sapphire, a gift from the Guggenheim family, and the Hall sapphire and diamond necklace, designed by Harry Winston and featuring 36 fine, well-matched cushion-cut Sri Lankan sapphires weighing a combined 195 carats. Also in the collection is the Bismarck sapphire necklace, designed by Cartier and sporting a central sapphire weighing 98.6 carats, which Mona Von Bismarck donated to the museum.

Sapphires are composed of corundum. Their color derives from trace elements, such as iron, titanium, chromium, copper or magnesium. When the trace element produces a ruby hue, the stone is called, what else, a ruby. (which is, as mentioned above, why sapphires cannot be red by definition).

The allure of large gemstones endures throughout the periods characterized as vintage, and sapphire features frequently in vintage engagement rings. (On 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings.)  

Find an exquisite collection of vintage and antique sapphire jewelry on 1stDibs.

Finding the Right Loose-gemstones for You

Are you shopping for diamonds and other loose gemstones to create your own custom jewelry? 

Why might you purchase a diamond or gemstone “loose” — that is, on its own, not mounted in a piece of jewelry? Perhaps you’re a connoisseur looking to acquire a unique investment. The scarcity of high-quality colored diamonds, for instance, especially pink diamonds, means that their value increases over time; the same is true of rare Kashmir sapphires and Burmese rubies. Far rarer than diamonds, Paraiba tourmaline, discovered only in the 1980s, is treasured as much for its extraordinary color as its scarcity, both of which contribute to its high value.

A more common scenario would be that you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.

If this sounds like you, read on for tips on becoming one of the world’s savviest gem hunters.

Educate yourself: When buying any piece of gem-set fine jewelry, you should familiarize yourself with the factors that determine a stone’s price. This will enable you to streamline your search for the perfect gem and have intelligent, productive conversations with sellers.

There is a wealth of information online, such as our diamond-buying guide and this overview of colored gemstones for engagement rings. The buying guides of the Gemological Institute of America (GIA), searchable by stone type, are also a widely trusted source for consumers venturing into the world of diamonds and gems for the first time.

Vet your vendor: If you peruse 1stDibs with any regularity, you know there is no shortage of vendors who deal in top-quality loose gemstones. (Read about our vetted sellers.) Finding a trustworthy, established dealer may be as easy as getting a recommendation from friends or family. And, although it may sound obvious, it pays to Google your candidates — and consult customer reviews — before making contact.

Harakh Mehta, designer and founder of the Mumbai, India–based fine-jewelry brand Harakh, has an innate understanding of proper client relations, especially when the customer is in unfamiliar territory. “Start chatting with the dealer, get to know them better," he says. "It’s very important to establish a comfort level. We never push a sale, as we want it to be a carefully considered purchase. So, if the client is not in a rush, we do it over a few virtual meetings or phone calls.”

Request documentation: The best dealers go to great lengths to furnish clients with documents verifying the quality rating, natural origin and provenance of a stone — showing, for example, that loose emerald hails from the famous Muzo mine in Colombia — and disclosing any treatments applied to enhance its appearance. (And who doesn't love emerald jewelry? The most valuable emeralds are the ones that have a deep bluish-green to true green color and no visible inclusions.)

If no grading report is available for a stone you are interested in, the dealer should be able to provide an authenticity document, such as an appraisal or info sheet, that has been signed by an in-house gemologist or professional appraiser. Google those names, too, for extra peace of mind.

Ask for videos and visuals: When transacting with a gem dealer online, you should always request real-time videos and photographs, since professional photos of a stone, usually on a white background, have likely been retouched for optimal presentation.

Read more about how to buy loose gemstones and find your dream gems today on 1stDibs.